package io;

import java.io.*;

/**
 * 缓冲字节流的演示
 * 使用缓冲字节流完成文件的复制
 */
public class CopyDemo3 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("Kobe.jpg");
        BufferedInputStream bis = new BufferedInputStream(fis);
        FileOutputStream fos = new FileOutputStream("Kobe_cp3.jpg");
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        long start = System.currentTimeMillis();
        int d;
        while ((d=bis.read())!=-1){
            bos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕,用时:"+(end-start));
        bis.close();//关闭高级流时,顺便将低级流也关闭了
        bos.close();










    }
}
